Button back



Patented Feb. 5, 1952 BUTTONBACK I Frederick A. Ballou, Jr.,.,.P rov'idence,1BLL, 18- i.

signor to B. A. Ballouffdr" C0,; Incorporated, a a corporation of Rhode Island Application'December 7,";1948 SerialNo 6 1 Claim. mini- 105*) 1 2 This invention relates to a securing device The inverted cup part l5 has an end wall 38 for the post of a button, such as might be apand side walls 31 which are arched inwardly plied to a lapel button. and formed with fiat surfaces in the form of an One of the objects of this invention is to prooctagonal cross section so as to provide a good vide a device which will engage the threaded 5 grip for the fingers. At the edges of the side post of a button to secure it against being pulled walls 31, there is a flange 18, as shown in Figthrough the fabric upon which it is mounted. ures 2 and 4, which extends outwardly from the Another object of this invention is to provide side walls 31. a device which may be easily and quickly locked The outer plate or closure plate comprises in position on the post, but which may be rea wall IS with an upstanding rim 20, as shown moved from the post only by an unscrewing in Figure 4, with a central hole 2| in the plate action. l9

Another object of the invention is to provide The spring plate which forms a clutch or proa device which will provide a minimum number vides the gripping action is a disc 22 having an of parts, thus reducing assembly operations. outer periphery of a size substantially that of Another object of the invention is to provide the flange l8 so as to fit within the flange of a guard for the post which is secured, thus prethe closure member [6. This flange 20 is then venting the point of the post or stud from being rolled inwardly as at 23 in Figure 2 so as to exposed to abraid the flesh or garment of the lock the plate firmly in position between the wearer. 20 flange l8 and the plate H! at its outer peripheral With these and other objects in view, the inedge. vention consists of certain novel features of The plate 22 is also provided with an opening construction, as will be more fully described 24 centrally thereof which will register with and particularly pointed out in the appended the opening 2| and from this opening, the plate claim. 26 is slit as at 25 and 26 to form a finger 21 and In the accompanying drawings: at 28 and 29 to form a finger 30. These fingers Figure 1 is a perspective view of the securing 21 and 30 are opposed and provided with an device or button back of this invention mounted opening which may -be diamond-shaped, as u on a post; shown at 3| in Figure 3 which will snugly fit Figure 2 is a sectional view on line 2-2 of 30 about the post H which it is to grip. The Figure 1; edges of these fingers 21 and 30 are deflected Figure 3 is a sectional view on line 3-3 of away from the plate Is as at 32 and 33 (see Figure 2; and

Figure 4 is a perspective exploded view of the the point I2 as it is inserted and also so as to various parts which enter into the construction 35 tend to move to close the hole 3| should the of the device which is the subjectof this inpost be urged outwardly of the button back. vention. The onset of the finger 21 at 32 will be difierent In proceeding with this invention, I provide from the offset of the finger 30 at 33 in a difiera button back formed of three parts comprising ential amount which will be the pitch of the an inverted cup part, the closure plate therefor, threads which are to be engaged. Some flexand a spring plate which is locked by the two ing of these edges will be permitted to accommo- 7 other parts and supported by the closure plate. date threads of different pitches.

The spring plate is provided with slits to form The arrangement is such that the button spring arms which will engage a threaded post back may be pressed onto the stud II, but canand permit the back to be pressed onto the 5 not be removed therefrom axially except by threaded post by an axial movement but recombining the axial movement with a rotary moved therefrom only by relative rotation. movement of the button back relative to the With reference to the drawings, the button shank or threaded post. It is essential that is designated generally In with a threaded post the post he threaded in order that the back or stud H extending therefrom which is pointed may be removed. This device would form a as at, l2 at one end. The button back, which permanent attachment on a nonthreaded post. is the part to be assembled therewith, is desig- I claim: 'nated generally I 4 and comprises an inverted A securing device for a threaded post comcup-shaped part IS, a closure plate therefor l6, prising a hollow member having a closed cupand a spring clutch plate I1, all as shown in shaped part and an outer plate across the mouth perspective in Figure 4. of the cup with an opening therein through Figure 2) so as to provide a guiding edge for which said post may extend, a spring plate supported by said outer plate and securely held in said member at its outer peripheral edge, said spring plate having a, central opening registering with the opening in the outer plate with opposed edges for engaging the post and. opposed generally radially extending fingers formed from the'stock of said spring plate by slitting from said edges of said opening to provide narrow junctures with the plate at pdints spaced radially outwardly from said central opening with the edges of the fingers at the opening deflected away" from the outer'plate different distances, and atan angle to' the plane of the plate corresponding to the pitch of the threads of the posts to be accommo-r dated, the differential of said distances peing substantially the pitch of the threads of the post to be accommodated.

vZEREDERICK A. BALLOU, JR.

REFERENCES CITED The Q eries cs sss a e 91 record m the as 2 thi Me UNITED STATES PATENTS gyggrd Feb. 

